Teflon For Insulators?

Teflon and alumina are combined in a new experimental high voltage insulator. Perhaps as few as one to two dozen are being tested at various sites throughout the country. Improvements realized in this new combination of materials are high insulation and qualities. However, advantages over porcelain in resisting contamination are questionable.

These insulators are unmarked, 4 7/8" wide and 3 3/4" high in "sky glaze" (a soft gray which blends in with the sky and is relatively less conspicuous than other tones). Weight is 3 1/2 pounds.

Sue Ducro 
Ashtabula, Ohio